Invention Grant
- Patent Title: Closed loop stepper motor control
- Patent Title (中): 闭环步进电机控制
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Application No.: US11843367Application Date: 2007-08-22
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Publication No.: US07863851B2Publication Date: 2011-01-04
- Inventor: Sundeep Chandhoke
- Applicant: Sundeep Chandhoke
- Applicant Address: US TX Austin
- Assignee: National Instruments Corporation
- Current Assignee: National Instruments Corporation
- Current Assignee Address: US TX Austin
- Agency: Meyertons Hood Kivlin Kowert & Goetzel, P.C.
- Agent Jeffrey C. Hood; Joel L. Stevens
- Main IPC: H02P8/00
- IPC: H02P8/00

Abstract:
System and method for controlling a stepper motor. A current position of the stepper motor may be received. A position error of the stepper motor may be determined using the current position of the stepper motor. A velocity profile may be maintained based on the position error, such that it tracks the position error. A position correction value may be determined based on the velocity profile, e.g., by integrating a portion of the velocity profile. A new position value may be generated to drive the stepper motor. An output position value to the stepper motor may be provided to drive the stepper motor. The output position value may incorporate the new position value and the position correction value and may be operable to reduce position error of the stepper motor.
Public/Granted literature
- US20090051310A1 Closed Loop Stepper Motor Control Public/Granted day:2009-02-26
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